US2461713A - Innersole and method of making the same - Google Patents

Description

1 9- F. AYERS. 2,461,713

INNERSQLE AND METHOD OF MAKING THE SAME Filed April 27, 1945 Patented Feb. 15, 1948 I Fred L. Ayers, Water-town. Mass..

twenty-two one-hundredth: to Charles G. ersteln, New York, N.'Y.

assignor of Ket- Application April 27, 1943, Serial No. 484,748

2 Claims. 1

This invention relates to innersoles for shoes and to their manufacture, and has for an object to produce an innersole of excellent quality suitable for use in a welt shoe, but from cheap materials.

A further object is to produce an innersole which may have a non-floating stitching rib, but without the necessity of forming an inside char:-

nel, and without the possibility of a gutter developing in the top face of the innersole during wear of the shoe.

Still another object is to provide such an innersole which may be provided with an extension or "cookie at the inner edge of the shank portion. I

For a more complete understanding. of th s invention, reference may be had to the accompanying drawings in which: I

Figure 1 is an inverted plan view of an innersole blank.

Figure 2' is a detail sectional view on line 2-2 of Figure l.

Figures 3, 4 and 5 are views similar to Figure 2, but showing successive steps in the formation, of the stitching rib.

Figure 6 is a detail sectional viewthrough one side portion of a lasted shoe employing the innersole of Figure 5.

Figures '7, 8. 9 and 10 are views similar to Figure 5, but showing modified constructions.

Figure 11 is a fragmentary exploded perspective view showing the application of an interior arch support or cookie" to an innersole of the type shown in Figure 5.

Figure 12 is a detail sectional view through alasted shoe employing the construction of Figure I 11 and on line I'l -i2 of that figure.

thin innersole blank which may be of leather or other suitable material, one side face of which,

- at least about the forepart, is strengthened by a reinforcing layer 2, preferably of fabric, such as duck or canvas, cemented to the face of the blank. I

The cement employed for this purpose may be a relatively cheap temporary cement as its strength isnot relied upon to any considerable extent in the completed shoe. Next, the blank is channeled inwardly around its margin as at 3 (see Figure 3) to form a lip. including a thin portion of the blank I and the margin of the reinforcing layer. The lip thus formed is then turned inwardly as shown in Figure 4, and for facilitating further operations it is preferably stuck down to the exposed upper face of the reinforcing fabric 2 by some cheap temporary and it is also cemented over and against the in-' turned lip, as shown in Figure 5. The thickness of this strip 4 should be substantially equal to that of the lip including the reinforcing layer 2 suflicient so that its exposed face is brought substantially to the level of the exposed face 6 of the reinforcing fabric 2 inwardly of the lip, so that when the innersole has been temporarily secured to a last I, as indicated in Figure 6, and a welt 8 is secured to the upper and lining margins 9 and 50, respectively, and the stitching rib'of the innersole, the stitching may be placed by the usual curved needle and may be set closeto the root of the rib on both its inner and outer 'faces as illustrated in Figure 6. The outer marginal portion of the reinforcing strip 4 not only brings the level of the feather outwardly of the lip'substantially even with the level of the exposed face 6 of the reinforcing layer 2 inwardly of the lip, but it also serves to strengthen and stiffen the marginal feather oi the innersole so that it isv effectively prevented from curling up during use of the shoe in which the innersole is incorporated.

In Figures 7, 8, 9, and 10, modified constructions are shown; In Figure 7 instead of the reinforcing layer 2 extending from side to side of the innersole blank, it is shown as composed of a. strip i2 having one marginal portion folded together to form overlapping layers at i3, instead of the single layer of the margin of the reinforcing material 2 shownin Figures 4 to 6. This forms a thicker stitch-receiving rib for the innersole. The strip 5 is employed with this construction, as in that previously described, and raises the level of the marginal feather up toward the level of the upper face of the reinforcing strip H at the inside of the rib.

In Figure 8 the reinforcing strip to. applied to the feather isfurther thickened by being folded inwardly on itself, the top fold'b'eing indicated at M, thus raising the level of the face of the feather by substantially double the thickness of the reinforcing strip. This is of particular utility where the reinforcing strip da is of thin material where a single thickness would not raise the level of the feather face to'the desired extent.

Figure 9 shows a construction somewhat similar to Figure 5, except that the marginal rein- I integral with the rib, this forming a portion of a folded rib is which may, if desired, be provided with a core I! about which it is wrapped. With this construction ordinarily it will not be necessary to extend the fabric reinforce entirely across the innersole blank so that a strip, preferably of bias fabric, may be used to form up this rib, and where the inner margins l8 of this strip come sufficiently close together to overlap, as in the shank portion of the innersole, they may be secured together and to the blank i as by a single line of stitching l9.

The cement secur'ement of the rib, when it is folded inwardly against the exposed face of the fabric reinforcement, is for the purpose of presenting the parts in better position for the se curement thereto of the reinforcing strip '5, but during the placing of the inseam stitching, the stitching instrumentalities act to raise the inner edge of the lip from the reinforcing material inwardly of the lip, destroying this initial bond between these parts, However, at that time there is no longer any particular advantage in holding the rib so cemented in position. Thisconstruction of innersole lends itself particularly well to the incorporation therein of an extension from the inner edge of the shank portion which forms an interior support for the' foot. Such extensions,

which are common, known as "cookies may be secured in manners such as are shown in Figures 11 to 14.

In Figures 11 and 12 a construction is shown in which the featheris cut away as at 22 at the inside' face of the shank substantially to the outer face of the inseam rib. The marginal portion of the cookie 20 is then brought against the outer face of the rib and over the out edge 22 of the feather as shown in Figure 12, and is preferably cemented in position. cookie that during the inseaming operation, the inseam securing means passing through the root portion of the stitching rib substantially along the dotted line a:y of Figure 12 also passes through the margin of the cookie 20, thus securing these parts firmly together and giving the desirable inclination .of the cookie relative to the innersole which it will have in' the completed shoe.

From the foregoing description of certain em bodiments of this invention, it should be evident to those skilled in the art that various other 1 changes and modifications might be made with- This so positions the Number out departing from the spirit or scope of this invention.

Iclaim: 1. The method which comprises cementing a reinforcing layer to one face of a thin innersole blank, channeling said blank inwardly from its edge close to said layer, turning inwardly the marginal lip including the margin of said reinforcing layer and temporarily securing said lip against the adjacent face of said blank, cementing a reinforcing strip against the cut face of said blank and the exposed face of said inwardly extending lip, cutting away a portion of the margin back substantially to said lip on the inner face of the shank portion of said innersole, and applying and cementing the margin of a co ie to said strip over said lip and against the cut away edge, the marginal portion of the cookie then being in position to be secured to said inn rsole by the inseam fasteners.

2. An innersole coprising a thin sole-shaped blank having a reinforcing fabric layer cemented to one face and inwardly channeled about its margin, the lip formed by said channel and including the margin of said layer being turned inwardly, a reinforcing strip cemented to the top face of the feather exposed by the turning inwardly of said lip and to said lip and of a thickness at said feather sufficient to bring its outer face substantially opposite to the top face of said reinforcing layer inwardly of said lip, the feather being cut away at the shank on the inside edge of said innersole, and a cookie having an edge portion overlying and secured to the inwardly turned lip at said cut away portion in position to be secured to said innersole by the inseam securing means.

FRED L. AYERS.

REF RENCES .cI'rEn UNITED STATESPATEENTS Name Date 1,425,263 Knipe Aug. 8, 1922 1,602,675 Hurley Oct. 12, 1926 1,704,656 Curtis Mar. 5, 1929 1,778,002 Richardson Oct. 7, 1930 2,049,159 Ellis July 28, 36 2,343,790 Nicholl Mar. 7, 1 44 2,391,217 Ayers Dec. 18, l 45 FOREIGN PATENTS Number Country Date 1,708 Great Britain Dec. 16, 1899

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